APA Citation

Shannon, D. A. Twentieth century America / by David A. Shannon ; maps by Willis R. Heath (2.). Chicago : Rand McNally.

Chicago Style Citation

Shannon, David A. Twentieth Century America / By David A. Shannon ; Maps By Willis R. Heath. 2. Chicago : Rand McNally.

MLA Citation

Shannon, David A. Twentieth Century America / By David A. Shannon ; Maps By Willis R. Heath. 2. Chicago : Rand McNally.

Warning: These citations may not always be 100% accurate.